It's just very frustrating," Geiger said when asked about the possibility of retirement. "I don't know, it's just frustrating. It's even hard to answer that question. It's just very difficult to even think about that," the Philadelphia Inquirer reports.

Geiger has been bothered by chronic tendonitis in his knees and has played sporadically in the preseason. He'll back up Dikembe Mutombe at center and play a little power forward if and when he's healthy.